package cn.tedu.service;

public class Hello {
    public int sum(int num1,int num2){
        return num1+num2;
    }
    public int mul(int num1,int num2){
        return num1*num2;
    }

    public static void main(String[] args) {
        Hello hello = new Hello();
        System.out.println(hello.sum(2, 6));
        System.out.println(hello.mul(3, 3));
    }
}
